A common pitfall is reading data before a measurement completes. The guide emphasizes using:

' Perform measurement and retrieve results vsaApp.Measurements.Item("Digital Demod").Run Dim evmRMS evmRMS = vsaApp.Data.Item("Digital Demod").Results.Item("EVM RMS").Value

For deep dives into specific commands, the (usually found at C:\Program Files\Keysight\89600 VSA\Help ) is your best friend. It includes a dedicated "Programming" section with code snippets for every supported language.

// Perform single acquisition app.Measurement.Acquisition.Initiate(); app.Measurement.Acquisition.WaitForMeasurementComplete(30000);

This architecture offers a massive advantage: hardware independence. You can write a script to analyze a 5G NR signal using a high-end PXI digitizer, and with minimal changes to your code, run the same analysis using a portable FieldFox analyzer. The programming interface remains largely consistent because the VSA software abstracts the hardware differences.